org.deegree.cs.components
Class PrimeMeridian

java.lang.Object
  org.deegree.cs.CRSIdentifiable
      org.deegree.cs.components.PrimeMeridian

All Implemented Interfaces:

Object, TypedObjectNode, IPrimeMeridian, CRSResource

public class PrimeMeridian
extends CRSIdentifiable
implements IPrimeMeridian

The PrimeMeridian class saves the longitude to the greenwich meridian.

Version:

$Revision: 30120 $, $Date: 2011-03-22 10:04:15 +0100 (Tue, 22 Mar 2011) $

Author:

Rutger Bezema, last edited by: $Author: aschmitz $

Field Summary

static PrimeMeridian

GREENWICH The PrimeMeridian of greenwich with epsg:8901 code and radian units.

Constructor Summary

PrimeMeridian(IUnit units, CRSCodeType[] codes)
A Prime meridian with 0 degrees longitude from the greenwich meridian.

PrimeMeridian(IUnit units, CRSCodeType code, String name)
A Prime meridian with 0 degrees longitude from the greenwich meridian.

PrimeMeridian(IUnit units, double longitude, CRSCodeType code)

PrimeMeridian(IUnit units, double longitude, CRSCodeType[] codes)

PrimeMeridian(IUnit units, double longitude, CRSCodeType[] codes, String[] names, String[] versions, String[] descriptions, String[] areasOfUse)

PrimeMeridian(IUnit units, double longitude, CRSCodeType code, String name, String version, String description, String areaOfUse)

PrimeMeridian(IUnit units, double longitude, CRSResource id)

Method Summary

boolean	equals(Object other)
IUnit	getAngularUnit()
double	getLongitude()
double	getLongitude(IUnit targetUnit)
double	getLongitudeAsRadian()
int	hashCode() Implementation as proposed by Joshua Block in Effective Java (Addison-Wesley 2001), which supplies an even distribution and is relatively fast.
void	setAngularUnit(IUnit units)
void	setLongitude(double longitude, IUnit units)
String	toString()

Methods inherited from class org.deegree.cs.CRSIdentifiable

addAreaOfUse, addName, checkForNullObject, checkForNullObject, checkForNullObject, getAreaOfUse, getAreaOfUseBBox, getAreasOfUse, getCode, getCodeAndName, getCodes, getDescription, getDescriptions, getId, getName, getNames, getOrignalCodeStrings, getVersion, getVersions, hasCode, hasId, hasIdOrName, setDefaultAreaOfUse, setDefaultDescription, setDefaultId, setDefaultName, setDefaultVersion

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.deegree.cs.CRSResource

addAreaOfUse, addName, getAreaOfUse, getAreaOfUseBBox, getAreasOfUse, getCode, getCodeAndName, getCodes, getDescription, getDescriptions, getName, getNames, getOrignalCodeStrings, getVersion, getVersions, hasCode, hasId, hasIdOrName, setDefaultAreaOfUse, setDefaultDescription, setDefaultId, setDefaultName, setDefaultVersion

Methods inherited from interface org.deegree.commons.tom.Object

getId

Field Detail

GREENWICH

public static final PrimeMeridian GREENWICH

The PrimeMeridian of greenwich with epsg:8901 code and radian units.

Constructor Detail

PrimeMeridian

public PrimeMeridian(IUnit units,
                     double longitude,
                     CRSResource id)

Parameters:

units - Angular units of longitude, normally radians.

longitude - (in given units) normally radians.

id - to be cloned

PrimeMeridian

public PrimeMeridian(IUnit units,
                     double longitude,
                     CRSCodeType[] codes,
                     String[] names,
                     String[] versions,
                     String[] descriptions,
                     String[] areasOfUse)

Parameters:

units - Angular units of longitude, normally radians.

longitude - (in given units) normally radians.

codes -

names -

versions -

descriptions -

areasOfUse -

PrimeMeridian

public PrimeMeridian(IUnit units,
                     double longitude,
                     CRSCodeType code,
                     String name,
                     String version,
                     String description,
                     String areaOfUse)

Parameters:

units - Angular units of longitude.

longitude -

code -

name -

version -

description -

areaOfUse -

PrimeMeridian

public PrimeMeridian(IUnit units,
                     double longitude,
                     CRSCodeType[] codes)

Parameters:

units - Angular units of longitude.

longitude -

codes -

PrimeMeridian

public PrimeMeridian(IUnit units,
                     double longitude,
                     CRSCodeType code)

Parameters:

units - Angular units of longitude.

longitude -

code -

PrimeMeridian

public PrimeMeridian(IUnit units,
                     CRSCodeType[] codes)

A Prime meridian with 0 degrees longitude from the greenwich meridian.

Parameters:

units - Angular units of longitude.

codes -

PrimeMeridian

public PrimeMeridian(IUnit units,
                     CRSCodeType code,
                     String name)

A Prime meridian with 0 degrees longitude from the greenwich meridian.

Parameters:

units - Angular units of longitude.

code -

name - human readable name

Method Detail

getLongitude

public double getLongitude()

Specified by:

getLongitude in interface IPrimeMeridian

Returns:

the longitude value relative to the Greenwich Meridian. The longitude is expressed in this objects angular units.

getLongitude

public double getLongitude(IUnit targetUnit)

Specified by:

getLongitude in interface IPrimeMeridian

Parameters:

targetUnit - The unit in which to express longitude.

Returns:

the longitude value relative to the Greenwich Meridian, expressed in the specified units. This convenience method make easier to obtains longitude in degrees (getLongitude(Unit.DEGREE)), no matter the underlying angular unit of this prime meridian.

getLongitudeAsRadian

public double getLongitudeAsRadian()

Specified by:

getLongitudeAsRadian in interface IPrimeMeridian

Returns:

the longitude value relative to the Greenwich Meridian, expressed in the radians.

getAngularUnit

public IUnit getAngularUnit()

Specified by:

getAngularUnit in interface IPrimeMeridian

Returns:

the angular unit.

setAngularUnit

public void setAngularUnit(IUnit units)

Specified by:

setAngularUnit in interface IPrimeMeridian

Parameters:

units - to be used

equals

public boolean equals(Object other)

Overrides:

equals in class CRSIdentifiable

toString

public String toString()

Overrides:

toString in class CRSIdentifiable

hashCode

public int hashCode()

Implementation as proposed by Joshua Block in Effective Java (Addison-Wesley 2001), which supplies an even distribution and is relatively fast. It is created from field f as follows:

• boolean -- code = (f ? 0 : 1)
• byte, char, short, int -- code = (int)f
• long -- code = (int)(f ^ (f >>>32))
• float -- code = Float.floatToIntBits(f);
• double -- long l = Double.doubleToLongBits(f); code = (int)(l ^ (l >>> 32))
• all Objects, (where equals( ) calls equals( ) for this field) -- code = f.hashCode( )
• Array -- Apply above rules to each element

Combining the hash code(s) computed above: result = 37 * result + code;

Overrides:

hashCode in class CRSIdentifiable

Returns:

(int) ( result >>> 32 ) ^ (int) result;

See Also:

Object.hashCode()

setLongitude

public void setLongitude(double longitude,
                         IUnit units)

Specified by:

setLongitude in interface IPrimeMeridian

Parameters:

longitude -

units -